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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management
David Lopez Cornelio
Unknown Affiliation
Agriculture, Biological Sciences & Forestry

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Status and Potential of the Peroryctidae Family to Improve Food Security in Papua New Guinea David Lopez Cornelio
Jurnal Manajemen Hutan Tropika Vol. 16 No. 3 (2010)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

As the importance and threats of wildlife resources in Melanesia are widely recognized, their appropriate use is critical to achieve sustainable development in the country. An underestimated relationship between the status of the species with forest condition and food security is discussed. Being as nutritious as conventional imported red meats, bandicoots are also considered as the most rapidly breeding marsupial. The taxonomy, morphology, habitat, and reproductive characteristics of the family Peroryctidae (bandicoots) are succinctly described in order to elucidate the species potential in continuous controlled harvests in the wild and its eventual farming, until now successful abroad with one species from a related family. This effort requires the application of proper regulations that guarantee continuous harvests in accordance to the population dynamics.
Land Use Effects on Soil Erosion in the Lowland Humid Tropics of Papua New Guinea David Lopez Cornelio; Rajashekhar Rao BK
Jurnal Manajemen Hutan Tropika Vol. 17 No. 1 (2011)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

A comparative study of the effect of 3 main types of land use (systems) on soil erosion levels was carried out in a traditionally farmed lowland forested region of Morobe Province, Papua New Guinea. Nine erosion plots werebuilt at 3 sites at almost the same altitudinal level, area corrections were done to eliminate the effect of varyingslopes. Volumes of runoff, sediments concentration, and soil main nutrients collected within the plots were measured on a weekly basis. The parameters measured were closely depended on rainfall amounts along the time. Significant differences were found among them, explained mainly by land cover types and their soil particularities such as infiltration rates, bulk density, and texture. Even though forest and grassland systems proved to be more effective in controlling soil losses, their areas were rapidly been converted into croplands, raising concerns for the sustainability and improvement of land use planning in the region.
Status and Perspectives of the Forestry Education in Papua New Guinea David Lopez Cornelio; Jhon Akande; Efi Yuliati Yovi
Jurnal Manajemen Hutan Tropika Vol. 17 No. 1 (2011)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The future of forestry within economic and social activities has to be envisioned and defined, in order to better integrate its multi functionality into education. Only a good definition of the roles played by forestry and the responsibilities future practitioners will carry can help define the curricula and methods. A revision of the current status of forestry science development in Papua New G is given considering its geographical location, market new trends, potential advantages, historical enrollments of students and staff, facilities, and nexus with other institutions. It was found that the forestry department of University of Technology Papua New Guinea has been releasing graduates in the last 36 years with a sub optimal formation, the causes are discussed and possible solutions formulated.
Status and Conservation Possibilities of Papua New Guinea’s Terrestrial Mammals David Lopez Cornelio
Jurnal Manajemen Hutan Tropika Vol. 17 No. 2 (2011)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The status of Papua New Guinea’s terrestrial mammals is revised according to their geographical distribution, life history characteristics, and current conservation plans and legislation. Considering their uniqueness and threatening factors, their appropriate management is critical to achieve sustainable development in the country. Concerning marsupial species no one has been yet domesticated, there is no organized breeding and their natural productivity is generally lower than ruminants. Their conservation status is related to their size as smaller species are usually more prolific, less conspicuous, and less preferred by hunters. Differences on evolutionary ecology between families are discussed, and recommendations are given for the assessment and further conservation of vulnerable species. Conservation programs must go alongside with rural livelihoods improvement through ecotourism, food security, and marketing of non timber forest products.
Land Cover Types Differentiation through Normalized Difference Vegetation Index in the Lowland Rainforests of Papua New Guinea David Lopez Cornelio
Jurnal Manajemen Hutan Tropika Vol. 17 No. 3 (2011)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The accurate estimation of above ground biomass in the natural forests of Papua New Guinea is a key component for the successful implementation of the REDD policy in the country. Biomass densities in a lowland rainforest site located at the northeast of the country were differentiated with Landsat digital images throughout normalized difference vegetation index (NDVI). Submaps of 4,377.69 ha of bands 3 and 4 were georeferenced with affine transformation and a RMSE of 0.529. The calculated NDVI map was sliced to separate its pixel values into 5 classes as they are distributed in the histogram with the assistance of ground truth points. The method is simple, fast and reliable, however swampy palm forest could not be discriminated from dense forests; and different bare land types had to be grouped into a single major class. Therefore other vegetation indexes and/or band ratios are recommended to be tested using images of higher spatial resolution to accurately differentiate more classes.
Co-Authors Efi Yuliati Yovi Jhon Akande Rajashekhar Rao BK